Shock-absorber for vehicles.



H. T. FINNELL & E. SGHERNIKOW.

SHOCK ABSORBER FOR VEHICLES.

APPLICATION FILED D130. 3, 1910.

Patented May 7, 1912.

J WW m m9 WW B m 7%; ATTORNEY WITNESSES a -f \Befirh UNITED STATES PATENT OFFICE;

HIGHLAND T. FINNELL AND ERNEST SGHERNIKOW', OF NEW YORK, N. Y.

SHOCK-ABSORBER FOR VEHICLES.

Specification of Letters I'atent.

Patented May 7, 1912.

To all whom it may concern:-

Be it known that we, HIGHLAND T. FIN- NELL and ERNEST SOHEBNIKOW, both citi.

erted by the car of the vehicle upon the axle or rim as will be more fully described in the following specification, set forth in the claims and illustrated in drawings, accompanying this application. It is also adapted for use at the circumference of the wheel of a heavy vehicle such as an automobile, in which case it may be placed between the hub and the rim.

In the drawings Figure l is a side elevation of the absorber with its outer casing or covering in section. Fig. 2 is a vertical sectional view of the absorber. Fig. 3 is a detailed view of the ball bearing.

The device is adapted to be located be. tween the axle (5) of the vehicle and the frame work (6) of its body. Secured to the axle (5) is a plate (7) "carrying a vertical cylinder (9) provided with interior screw threads (10). The plate and the cylinder are secured to the axle by screws (8) or other convenient means. Within the cylinder (9) plays a plunger (11) having its exterior provided with threads (12) which fit within the interior threads of the outer cylinder (9). Into the upper end of the plunger is screwed or otherwise secured a,

head (13) carrying on its upper outer face a ball (14) while its under or interior side is provided with a raceway (15) to contain the ball bearings (16) which are retained in place by a ring (17). The plunger is held in its upward or outward position by means of the coil spring (18) but upon an abnormal weight or pressure being put upon the plunger, it is forced downward agalnst the spring and in consequence of the threads (12) playing in corresponding grooves within. the cylinder (9) the plunger is rotated. The weight or pressure upon the head (13) is sustained by the ring or washer (20) upon which rest the balls (16). The balls are free to play around the ring (20) and the ring will move up and down with the upper part of the spring (18). The ball (14) is confined within a block (21) which is made in two parts and-held together by screws (22). A lubricant is furnished to the interior of the block through the pipe (23) from a designed source (not shown) so that the ball is furnished with suflicient lubrication to prevent wear and tear. The interior of the cylinder (9) mayalso be provided with oil in order to lessen .the friction of the threads (12) within the cylinder, and lubricate the ball bearings.- The ball (14:) and its easing block (21) also acts as a universal joint which will allow for the movement of the plunger and for the lateral movement of the body with relation to the other parts of the vehicle. The rotating of the plunger caused by the spirals provides a source of resistance as it moves down the cylinder (9) and the air inclosed within the cylinder and compressed by the plunger also acts as a cushion.

In order to prevent dust and grit entering the spaces between the moving parts of the device an outer casing (2 1) is attached to the upper end of the plunger so as to inclose it and slides over the cylinder (9). This casing (24) should fit close enough to prevent the entranee of dust, but at the same time move easily over the outer face of the cylinder.

It is obvious that the parts may be otherwise arranged and the details modified without departing from the essential features of our invention as above described. It is also apparent that the device may be used at other points than. between the axle and body. In case it is desired it may be used in series around the circumference of the wheels and the bearing face or tire.

What we claim. as new and desire to secure by Letters Patent is:

1. In a shock absorber for use between two points of compression in a moving vehicle embodying hollow telescopic members mounted for spiral motion one about the other and a spring inclosed within said members, a head adjust-able within the outer end of the inner member, a ring against which the outer end of said spring bears, balls resting on said ring, the inner face of said head being formed with a race way, and

first-named ring and in which said balls are a ring interposed between the head and the retained. first-named ring and in which said balls are 2. In a shock absorber for use between two retained, said head having a projection with 15 points of compression in a moving vehicle a ball, and a sectional socket for said ball 5 embodying hollow telescopic members provided With means for supplying a lubrimonnted for spiral motion one about the (ant thereto.

other and a spring inclosed within said HICHIA Y s 1 v i. A 1r 1 I\D T. DIMYLLL. members, 1 head adJustAbIe mthm the outer ERNEST SCHERNIKOVV.

end of the inner member, a ring against 10 Wh1eh the outer end of said spring bears, \V1tnesses:

balls resting on said ring, the inner face of \VALTEn E. Bonn, sald head being formed with g1 race way, and BERNARD V. TRAYNOR. 

